To tell you the truth, none of the ideas you just expressed found their way into my understanding of the tune when I listened to it. I just thought it was very clever the way the added layer of racial groups changed the meaning of the original lyrics. I didn't think it was denigrating. I thought it was either ironic or a lampoon. But know that if you keep it the way it is, there will always be morons who will jump on it and criticize it and you. The world is predictably moronic on a regular basis. Push the right buttons and it becomes immediately apparent. Good luck with the tune. I like it. I just wish it was marginally less in your face percussive.